Start by counting the cameras: recorders come in 4, 8 or 16 channels, and the next decision is whether you need PoE ports, through which a camera gets both power and data over one cable. After that you look at how many drives fit (1HDD or 2HDD) and at total bandwidth: for a dozen or so 4K cameras an 80 Mbps unit is no longer enough — you need 160 or 448 Mbps. Pentabrid XVR models also accept old analogue cameras, so they suit an upgrade to a system that is already installed.
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Start by counting the cameras: recorders come in 4, 8 or 16 channels, and the next decision is whether you need PoE ports, through which a camera gets both power and data over one cable. After that you look at how many drives fit (1HDD or 2HDD) and at total bandwidth: for a dozen or so 4K cameras an 80 Mbps unit is no longer enough — you need 160 or 448 Mbps. Pentabrid XVR models also accept old analogue cameras, so they suit an upgrade to a system that is already installed.